Boston Partners
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Boston Partners’s Owens Corning OC Stock Holding History

Boston Partners’s Portfolio OC Stock Details OC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$204K Buy
+1,285
New +$156K ﹤0.01% 795
2022
Q3 		– Sell
-360,328
Closed -$26.8M – 742
2022
Q2 		$26.8M Sell
360,328
-2,137,197
-86% -$189M 0.04% 283
2022
Q1 		$228M Sell
2,497,525
-1,855,593
-43% -$171M 0.28% 131
2021
Q4 		$394M Sell
4,353,118
-611,052
-12% -$55.5M 0.47% 66
2021
Q3 		$425M Buy
4,964,170
+109,584
+2% +$10.3M 0.54% 57
2021
Q2 		$475M Sell
4,854,586
-1,116,989
-19% -$112M 0.61% 52
2021
Q1 		$550M Sell
5,971,575
-1,831,701
-23% -$154M 0.74% 38
2020
Q4 		$591M Sell
7,803,276
-183,048
-2% -$13.3M 0.92% 19
2020
Q3 		$550M Sell
7,986,324
-381,961
-5% -$24.5M 1% 15
2020
Q2 		$467M Sell
8,368,285
-848,736
-9% -$39.6M 0.86% 26
2020
Q1 		$358M Buy
9,217,021
+706,171
+8% +$39.5M 0.71% 40
2019
Q4 		$554M Sell
8,510,850
-55,449
-0.6% -$3.55M 0.73% 41
2019
Q3 		$541M Buy
8,566,299
+912,294
+12% +$52.2M 0.73% 36
2019
Q2 		$445M Buy
7,654,005
+60,275
+0.8% +$3.08M 0.58% 50
2019
Q1 		$358M Sell
7,593,730
-223,932
-3% -$10.9M 0.47% 62
2018
Q4 		$344M Sell
7,817,662
-1,322,589
-14% -$64.1M 0.49% 57
2018
Q3 		$496M Buy
9,140,251
+3,484,933
+62% +$210M 0.58% 52
2018
Q2 		$358M Buy
5,655,318
+5,478,011
+3,090% +$378M 0.43% 74
2018
Q1 		$14.3M Sell
177,307
-141,582
-44% -$12.3M 0.02% 350
2017
Q4 		$29.3M Sell
318,889
-137,314
-30% -$11.6M 0.03% 292
2017
Q3 		$35.3M Buy
456,203
+64,763
+17% +$4.53M 0.04% 261
2017
Q2 		$26.2M Buy
+391,440
New +$24.5M 0.03% 286

Other funds holding OC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
DSA
Davis Selected Advisers Tucson, Arizona $23.3B AUM 26.95% 1-Year Est. Return

Boston Partners's OC Position: Q2 2026 in Review

Boston Partners opened a new position in Owens Corning (OC) in Q2 2026: 1,285 shares worth $204K. The stake represents ﹤0.01% of the portfolio and ranks #795 among its holdings. This is a return to the name: Boston Partners previously reported a position in OC as recently as Q2 2022.

Boston Partners first reported a position in OC in Q2 2017 and has held it in 22 quarters since. The position peaked at $591M in Q4 2020. 687 funds tracked by Wall St. Rank hold OC as of Q2 2026.

  • Boston Partners held 1,285 shares of Owens Corning worth $204K as of Q2 2026.
  • Owens Corning was a new Boston Partners position in Q2 2026.
  • Owens Corning made up ﹤0.01% of Boston Partners's portfolio in Q2 2026, its #795 holding.
  • Boston Partners first reported a position in Owens Corning in Q2 2017 and has held it in 22 quarters since.
  • Boston Partners's Owens Corning position peaked at $591M in Q4 2020.
  • 687 funds tracked by Wall St. Rank held Owens Corning as of Q2 2026.

Based on Boston Partners's 13F filing for Q2 2026, filed 4 Aug 2026.